在盛有碘水的试管中,加入少量CCl4后振荡,静置片刻后(  ) A.整

在盛有碘水的试管中,加入少量CCl4后振荡,静置片刻后( 

A.整个溶液变紫色

B.整溶液变为棕黄色

C.上层为无色下层为紫红色

D.下层无色上层紫红色

答案

【答案】C

【解析】碘易溶于CCl4,溶液呈紫红色,由于CCl4密度比水大,则层为无色下层为紫红色,故选C

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